Tool bit



FIG. 1 is an upper perspective view of the tool bit embodying the new design;

FIG. 2 is an enlarged perspective view of area II in FIG. 1;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof, the right side view being a mirror image thereof; and,

FIG. 5 is a front view thereof, the rear view being a mirror image thereof.

FIGS. 1-5 show features of a tool bit in broken lines. These features are shown for environmental purposes and do not form any part of the claimed design. The broken lines immediately adjacent the solid line portions of the design form the boundary of the design, with the broken lines forming no part of the claimed design. 

CLAIM The ornamental design for a tool bit, as shown and described. 